www.phcppros.com/articles/220-air-rooftop-system

Air rooftop system
March 10, 2015
Unique engineering integrates hydronic technology, a new air distribution system and an integrated control platform to produce ultra-high efficiencies. Available with an 800–1,200 MBH heating capacity, this product utilizes an innovative factory-charged, closed loop 35 percent glycol mix for freeze protection, with no separate water supply required. It can offer airflow of 4,501–10,000 CFM.
Manufacturer Name: Xcelon HVAC